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-   -   CSPP/Cirlotron - Brand Names of Commercial Solid State Amplifiers (http://www.diyaudio.com/forums/solid-state/160869-cspp-cirlotron-brand-names-commercial-solid-state-amplifiers.html)

tiefbassuebertr 8th February 2010 03:41 PM

CSPP/Cirlotron - Brand Names of Commercial Solid State Amplifiers
 
About
http://www.diyaudio.com/forums/solid...put-stage.html
I have listet some URLs, mostly basic articles and diy projects.

From the commercial brands with circlotron topology inside by solid state power output I know only "SUMO" (and several others with tubes like GRAAF GM-20). BAT (Balanced Audio Technology) perhaps uses also this topology by their solid state amps, but this I don't know exactly (schematic information wanted).

Which additional commercial brands uses this cross shunt push pull topology in their solid state amplifiers?

Thank you very much for your advices in advance.

tiefbassuebertr 29th March 2010 03:34 PM

really no informations about commercial circlotron solid state models?

The invention of the Circlotron amplifier has generally been generally attributed to Alpha M. Wiggins of Electro-Voice, Inc., Buchanan, Michigan.
more basic informations about this topology are there:
Circlotron History Page

EUVL 29th March 2010 04:21 PM

Maybe you did not look hard enough :

6moons audio reviews: Thorens TEM 3200
Stereoplay, das Magazin fr Hifi, Surround und Musik - Know-how

The output stage, which is circlotron, is SS.
The front end is just normal tube gain stage.



Patrick

tiefbassuebertr 17th October 2010 05:57 PM

3 Attachment(s)
Quote:

Originally Posted by EUVL (Post 2135622)
Maybe you did not look hard enough :
6moons audio reviews: Thorens TEM 3200
Stereoplay, das Magazin fr Hifi, Surround und Musik - Know-how
The output stage, which is circlotron, is SS.
The front end is just normal tube gain stage.
Patrick

Thank you for this advice. additional I have find an additional solid state vintage amp with circlotron topology:
Vermona Regent 620
http://elektrotanya.com/PREVIEWS/634...-pwr.pdf_1.png
and concerning the Thorens TEM 3200 this sites:
6moons audio reviews: Thorens TEM 3200
Test der neuen Thorens Monoendstufe TEM 3200 in Stereoplay 01/06, Verstärker/Receiver - HIFI-FORUM
Circlotron Amplifiers Once Again
THORENS - TEM 3200

But there are must me a lot of more brands with circlotron/CSPP/PPP than Thorens, Vermona and Sumo - who knows additional brands without tubes in the power stage ??

here on diyaudio this new thread concerning the Circlotron topology exist:
http://www.diyaudio.com/forums/solid...rclotrons.html
and partly this thread:
http://www.diyaudio.com/forums/solid...stages-11.html

tiefbassuebertr 22nd February 2011 09:51 PM

Are there any news?

tiefbassuebertr 24th May 2012 09:57 AM

I have heard, that Yamaha or DENON has introduce amplifiers with this CSPP topology. Who knows more ?

tiefbassuebertr 30th November 2012 06:01 PM

Quote:

Originally Posted by tiefbassuebertr (Post 3034837)
I have heard, that Yamaha or DENON has introduce amplifiers with this CSPP topology. Who knows more ?

No Informations?

banat 30th November 2012 07:01 PM

1 Attachment(s)
Hi Tiefbass !

Yes Yamaha introduced two SS Amps that use Circlotron topology , AS2000 & As 1000 , here is Yamaha commercial flyer with block schematics .

BTW you have forget to mention Atma-Sphere manufacture .

Best Regards !

tiefbassuebertr 5th December 2012 10:48 AM

Quote:

Originally Posted by banat (Post 3264590)
Hi Tiefbass !
BTW you have forget to mention Atma-Sphere manufacture .
Best Regards !

interesting devices:
Atma-Sphere music systems, inc.
unfortunately tube amplifiers.
Quote:

Originally Posted by banat (Post 3264590)
Hi Tiefbass !
Yes Yamaha introduced two SS Amps that use Circlotron topology , AS2000 & As 1000 , here is Yamaha commercial flyer with block schematics .
Best Regards !

Thank you.
Schematics are here for the models "A-S2000" and "A-S1000":
http://elektrotanya.com/yamaha_a-s20.../download.html
http://elektrotanya.com/yamaha_a-s10.../download.html

banat 5th December 2012 01:33 PM

Hi Tiefbass !

After my provisional analyze of Yamaha AS series of Circlotron based SS Amp I have concluded that both Amps circuitry is too much complex , any way to have both original Yamaha manual from your links is not bad for future service purposes .

On the other hand Atma-Sphere founder & main circuit designer Mr.Ralph Karsten have fully supported DIY community to DIY his M60 OTL Circlotron tube Amp here : http://www.diyaudio.com/forums/tubes...ube-amp-2.html

Best Regards !


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